Manuals / SSI America / Household Appliance / Water Pump

SSI America 90-2581 REV B manual 7-14

Models: 90-2581 REV B

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Install 3.6Symbols Maintenance Problem Solving fFast & easy setup Command Interpreter 2.6.1Mobile Phase Reservoirs 5.6Cleaning the Pump 5.5Pulse Damper Replacement DC Power Supply

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The Pump mechanism, Control Boards, & Pulse Dampener (with Pressure Transducer) are accessible by removing pump drawer.

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SSI America 90-2581 REV B manual 7-14

Page 32 Page 34

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Contents

Operators Manual Binary Solvent Delivery ModulePage 1.INTRODUCTION fFast & easy setup 1.1.1 Pump Features 1.1.2 Wetted Pump Materials 1.1.3 Self-FlushingPump HeadMicroprocessor advanced control It is recommended that the Self Flush feature be used to improve seal life in a number of applications. In particular, as stated above if pumping Buffers, Acids/Bases or any inorganic solution near saturation, the pump should utilize the Self Flush feature. With every piston stroke, an extremely thin film of solution is pulled back past the seal. If this zone is dry without use of Self Flush, then crystals will form with continuous operation, which will ultimately damage the seal 1.1.4 Self-Flushand Seal Life Flow Rates 2.1Unpacking and Inspection 2.INSTALLATION2.2Location/Environment 2.3Fluid Connections & Priming PUMP SELF-FLUSHConnect wash solution inlet and outlet tubing opaque to the flush housing as shown 2.5.1 Solvent Out-gassingand Sparging 2.4Electrical Connection2.5Solvent Preparation 2.5.2 Cavitation 2.6.1Mobile Phase Reservoirs2.5.3 Filtration 2.5.4 Initial system pressurization Daily 2.6.3 Inlet Tubing and Filters 2.6.2 Self-FlushSolution2.6.4 Priming the Pump and the Flushing Lines 2.6.6 Long Term Pressure Calibration Accuracy 2.7.1Isopropanol Flush 2.7.2 Packaging for Shipping2.7Preparation for Storage or Shipping 3.1.1Control Panel 3.OPERATION Non-volatileMemory Reset If the pump is operating erratically, there is the possibility that the memory has been corrupted. To reset the memory and restore the pump to its default parameters, press and hold the UP-ARROWbutton when the power is switched on. Release the button when the display reads rES. The parameters stored in non-volatilememory, i.e., the flowrate, the pressure compensation, the voltage/frequency select, the lower pressure limit, and the upper pressure limit will be set to the factory default values. The head type setting is the only parameter not changed by the non-volatilememory reset function. If the firmware is upgraded to a newer version, a non- volatile memory reset will automatically occur the first time the power is switched on 3.5Rear Panel Remote Input 3.6Symbols 4.1.1Liquid System Flow Path 4.THEORY OF OPERATION4.1.2 Pump Cycle 4.1.3 Pulse Damping 4.2.1 Microprocessor Control 4.2.2 DC Power Supply4.2.3 Remote Interfacing 4.2.4 Motor Stall DetectorPage 5.1.1 Inlet Filters 5.MAINTENANCE5.2.1Removing a Pump Head 5.1Filter Replacement 3.Remove the inlet line from the inlet check valve OUTLET FLUSHING CHECK VALVE OUTLET FLUSHING 1.Inspect the piston seal cavity in the pump head. Remove any foreign material using a cotton swab, or equivalent, and avoid scratching the sealing surfaces. Repeat for the self-flushhousing. Be sure no fibers from the cleaning swab remain in the components 5.2.2 Cleaning the Pump Head Assembly 3.If the check valves have been removed, tighten the check valves on stainless steel pumps to 75 inch-poundsor enough to seal at maximum pressure. Do not exceed maximum torque. For Bioclean PEEK pumps, tighten each check valve firmly by hand. Do not go ¼ turn past finger tight Lower than normal pressure, pressure variations, and leaks in the pumping system can all indicate possible problems with the piston seal. Depending on the fluid or mobile phase used, piston seal replacement is often necessary after 1000 hours of running time 5.2.3 Replacing Piston Seals 1.Remove the pump head as described in Section 5.2.1. Use caution so as not to damage the sapphire piston 5.Condition the new seal as described in Section 5.2.4 Changing the Piston 5.3Conditioning New Seals 5.2.5Replacing the Pump Head 5.5.2 Pulse Damper Refurbishing 5.5.1Removing the Pulse Damper5.4Check Valve Cleaning and Replacement 5.5Pulse Damper Replacement 5.6Cleaning the Pump 5.5.3 Pulse Damper Installation 5.7Lubrication 5.8Other Pump Maintenance 7-14 5.9Fuse Replacement 1.Unplug the unit 2.Remove the cover Quick Guide to Problem Solving 6.PROBLEM SOLVINGYou Notice This May Mean 7.LIST OF REPLACEMENT PARTS 880201 Seal Kit, Aqueous, 5mL A.1.1 Hardware Implementation APPENDIX APart Description Part Number Command Interpreter A.1.3“/” character Page A4-pinterminal board connector and a 10-pinterminal board connector are provided on the back panel. Any device capable of providing the proper run/stop logic level, flowrate control frequency, or flowrate control voltage can be used as a remote controlling device for pump operation via this connection. The terminal board connectors can be removed for ease of connecting wires, if desired, by pulling firmly rearward and should be reinserted firmly afterward A.2.1 Pressure Fault and Motor Stall Fault Output the EVENT 1 terminal and the EVENT 2 and EVENT 3 terminals is affected. EVENT 2 is Normally Closed connected to EVENT 1 until a fault occurs and then opens. EVENT 3 is Normally Open not connected to EVENT 1 until a fault occurs and then closes A.2.2 General Information on Inputs The PUMP-RUN, PUMP-STOP,and ENABLE IN inputs operate from an internal 5 VDC source and each one draws approximately 0.008 amps when connected to COM. To activate either the PUMP- RUN, PUMP-STOP,or ENABLE IN input connect it to COM. Any device capable of switching 0.008 amps can be connected between the PUMP-RUN, PUMP-STOP,or ENABLE IN input and COM, such as: a switch contact, a relay contact, an open collector output, an open drain output, or any output with a high logic level output of 3.8 to 6.0 volts and a low logic level output of 0.0 to 0.5 volts. A switch contact or a relay contact is preferred since this type of connection will provide isolation between the pump and the controlling device. The COM terminal is internally connected to the pumps chassis ground and should be connected to the controlling devices ground or zero volt terminal when the controlling device has an open collector output, an open drain output, or any output with logic level output A.2.4 Run and Stop Inputs When activated ENABLE IN is at a low logic level, the ENABLE IN input disables flowrate control on the front panel and enables flowrate control on the back panel A.2.4 Enable Input EZ GRIP FITTING GUIDE APPENDIX B Scientific Systems Inc Warranty Statement A-10

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